Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"Crystal field theory."”.
-
Application of crystal field theory to the infrared spectra of transition metal complexes
… Qhelates ~eceives an interpretation in terms of crystal field theory. The effect of halogen and methyl substituents in the I~ spectra of the Cu(II) chelates is consistent with the band assignments based on crystal field effects P.nd is relat;.ep to both the resonance and inductive capacities of …
-
Distribution of trace elements in olivines and proxenes - an experimental study
"Olivine, pyroxene,and spinel were crystallized in the ternary system anorthite-forsterite-silica to which trace amounts of the transition metal ions Cr³⁺, Fe²⁺, Mn²⁺, Co²⁺, Ni²⁺, and Cu²⁺ had been added. The resulting concentrations of the transition metal ions in the liquid and crystalline phases …
-
Application of IR and NMR spectroscopy to certain complexes of 8-hydroxyquinoline and 8-aminoquinoline
… relation to structural considerations based on crystal field theory. An investigation of the IR spectra of a series of -tris, bis and mono(8-aminoquinoline) complexes of the first transition row metal(II) perchlorates and halides is reported.
-
Crystal field aspects of vibrational spectra
Crystal Field Theory (C.F.T.), and its congeners, Ligand Field Theory (L.F.T.) and Molecular Orbital Theory (M.O.T.), have been most successful in explaining many of the properties of transition metal complexes. This is particularly true of their electronic spectra, magnetochemistry and chemical …
-
Magnetic properties of some niobium (IV) and tantalum (IV) complexes of distorted octahedral symmetry.
… of paramagnetism using the approach of the crystal field theory is discussed, with special emphasis on the tetragonally distorted octahedral field. For the limiting cases when Delta >> lambda for positive and negative Delta, expressions for the susceptibility are derived. Complexes of NbX4 …
-
Study of the Valence Tautomer Complex [Co(sq)(cat)(3-tpp)2] for Applications in Molecular Spintronics
… light irradiation, pressure, magnetic field, and electric field. In recent years, considerable research has been dedicated to better understanding the underlying principles that govern the behavior of these materials, so that their implementation into nano-based devices might be …
-
Investigation of ligand misdirection using the kinetic element effect and the kinetic enthalpy effect.
… synthesized with the atropisomeric dabp. X-ray crystal structures were solved for [Ru(bipy)2(dabp)]2+ and [(eta6-C6H6)Ru(dabp)(Cl)]+. Only one diastereomer was observed for [Ru(bipy)2(dabp)] 2+ in the 1H NMR spectrum. Exchange was observed and measured for the ruthenium and osmium complexes of …
-
Applications of a three-body potential model and crystal field calculations to the simulation of EU³⁺, Er³⁺ and Yb³⁺ environments in PbO.SiO₂ glass
… molecular dynamics simulation techniques and crystal-field theory, is presented. The primary focus of the research was to develop a more realistic potential model to better describe the environment surrounding the rare-earth ion. The configurations generated from the MD simulations were used …
-
CEF-phonon interactions in rare earth sesquioxides: pressure-, temperature-, and magnetic field-dependent Raman scattering studies
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
-
CEF-phonon interactions in rare earth sesquioxides: pressure-, temperature-, and magnetic field-dependent Raman scattering studies
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms